Tractor.



H. H. LOHMEYER.

TRACTOR.

APPLICATION FILED JUNE 12. I914.

Patented Apr. 4:, 1916. p

3 SHEE TS-SHEET 1- H. H. LOHMEYER.

TRACTOR.

APPLICATION FILED JUNE 12, m4.

Patented Apr. 4, 1916.

3 SHEETS-SHEET 2.

H. H. LOHMEYER.

TRACTOR.

APPLICATION FILED }UNE I2, 1914.

Patented Apr. 4,1916.

3 SHEEICS-SHEET 3.

UNITED STATES HENRY H. LOHMEYER, OF

AMBROSE, NOBTI-I DAKOTA.

TRACTOR.

. Application filed June 12,

To all whom it may concern Be it known that I, HENRY H. Lonmnrnn, a citizen of the United States, residing at Ambrose, in the county of Divide and State of North Dakota, have invented certain new and useful Improvementsin Tractors,

' of which the following is a specification.

. This invention relates to an improved traction engine and the principal object of b the invention is to provide improved means l for permitting a plow or other load to be connected with the traction engine and caused to travel at the same rate of speed a'fsf the traction engine or at a different rate of Another object of the invention is to pro? lvide improved means for mounting a drum upon which a cable is wound, the cable pro, sliding the means for connecting the traction engine with the plow. i

ii Another object of the invention is to probide improved means for rotating the drum when desired.

Another object of the invention is to provide improved means for controlling the i tationof the drum shaft. l Another object of the invention is to pro \lldfi an improved cable guide for guiding the winding and unwinding of the cable upon the drum.

This invention is illustrated in the accompa' ying drawings, wherein- *igure 1 is a View showing the traction engine in side elevation; Fig. 2 is a "iew of the drum operating mechanism shown partially in elevation and partially in section; Fig. 3 is a view Showing the drum and cable guide in elevation; Fig. L. is a fragmentary view of the drum operating mechanism, a

portion of the housing being broken away to show the planetary gearing mounted therein; Fig. 5 is a fragmentary view. of the drum operating mechanism shown partially in elevation and partiallyingscetion; Fig. 6 is a fragmentary view showing a pawl engaging a ratchet forming part of the drum; F ig. 7 is a fragmentary view of the cable guide; Fig. 8 is another'view of the pawl shown inFig. 6; Fig. 9 is a view of the sprocket wheel shown in Fig. 2; and Fig. 10

is a view of the structure shown in Fig. 9 with the outer cap removed.

The traction engine is prpyided with a frame 10 the rear end portion of which is supported by an axle 11 carrying the wheels 12. A bracket 13 is connected with the Specification of Letters Patent.

Patented Apr. 4, 1916. 1ei4. Serial No. 544,774.

frame 10 and is provided with rollers 14 and 515 between which the cable 16 passes. This cable after passing through the rollers 14 and 15 is passed around the pulley Wheel 17 and is then brought back and connected with the frame 10 as shown at 18. This pulley wvheel 17 is mounted in the housing 19 which is connected with the clevis 20 of a plow by means of a pin 21 and it will thus be seen that when the traction engine moves :jforwardly the plow will be carried with it. The drum shaft 22 is rotatably supported in the bearing brackets 23 and 24 and carries a drum 25 which is provided with the ratchet 26. A pawl 27 is slidably and pivotally mounted as shown in Figs. 6 and 8 and is provided" with a tooth 28 which normally engages the teeth of the ratchet 26, the pawl being yieldably held in a normal position b. the springs 29 and 30. The spring 29 has one end connected with the pawl 27 and the opposite end with the hook 31 of the support 82, thus normally holding the .pawl in the position shown .in Fig. 6 and ythle spring 30 is wound about the pin 33 land has one end engaging the abutment 3 1 gaii d the lower end engaging the block 35 thins normally holdingthepawl in the p0si- 11 shown in Fig. 8 to permit it to slide doivnwardly and take up undue strain. f'od 36 leads from the pawl 27 and has its opposite end connected with. a pivotally ,nounted lever 37 by means of which the rod fmay be drawn to swing the pawl out of an operative position and thus move the tooth 28out of engagement with the ratchet 26.

P. In order 'to guide the winding and unwinding of the cable 16 upon the drum 25 there has been provided an improved pable guide. The rack 38 of the cable guide is sub= stantially rectangular in form as shown in Fig. 3 and is provided with longitudinally. and transversely extending bracing bars 39 and -10, the longitudinally extending bracing bar 39 being provided with an inwardly extending web 41. This web 41 is engaged by the roller 42 mounted upon shaft 44, as sh wn in Fig. 5. The pinion 43 is carried by tho shaft H and meshing with the teeth of tlulrack 38 to reciprocate the rack as the pinion rotates. The shaft 41 is rotatably mounted an the bearings 45 of the arm 46 extending froilli the bearing 23 and carries a diagonal gen-i447. the teeth of which are engaged by the worin 48 which rotates the gear 47 when the shaft 22 rotates. A housing 4:9 extendsfrom the rack 38 and carries rollers 50 between which the cable 16 passes. In order to guide the longitudinal movement of the cable guide there are provided arms 51 which extend from the roller housing 49 and are provided with slots through which the bars 53 pass. These bars 53 extend longitudinally of the drum and have their end portions passing through the fingers 5+ extending from the bearing 45 and through the fingers 55of arm fiti extending from bearing 24. A guard 57 has its arms 58 passed through the fingers 54: and extends around the rack 38 to support the rack as shown in Fig. 5 and prevent the rack from moving out of engagement with the pinion 43. thus preventing any danger ofthecable guide not being operative when thecable is being wound upon the drum 25. The brake drum 5!) has one side mounted upon the hub 60 of the. disk (51 and has its opposite side 62 mounted upon the collar 63 of the sleeve ($4. The disk (31, is provided with a flange (35 having internal teeth to engage the gears (36 meshing with the inner gear 67 rigid with sleeve. (34. The gears 66 are rotatably connected with the side- 62 of.

the brake drum by means of stub axles (5S and the inner gear (57 is-mounted upon the shaft 22 as clearly shown in Figs. 2 and 4. The brake band (59 has one end secured to the support 70 and after passing around the brake drum is connected with the lever 71 from which the rod 72 leads. This rod'72 is connected with an operating handle orlever 7 3 which is pivotally connected with 'a support 74 located at a convenient place upon the frame 10. \Vhen it is desired to apply the brake it s simply necessary to grasp the lever handh:vv 1'3 and move the lever to tighten the brake band about the brake drum.

A belt 75 passes around the wheel 76 which is mounted upon the shaft 77 and rotates the shaft so that the sprocket chain 7.8 may be moved by the sprocket wheel 79 carried by the shaft 77. This sprocket chain 78 passes around a large sprocket wheel 80, the hub 81 of which is rigid with the sleeve 64 and is enlarged as shown in Fig. 2 to form a housing provided with internal teeth 82. As the shaft 22 rotates (when the cable is allowed to unwind from the drum 25) the pawls S3 pivotally carried by the block 84: mounted upon the shaft 22, will engage the teeth 82 in the sprocket wheel 80. Therefore the speed of the drum 85 is limited to the speed of the sprocket wheel -wh'en the cable is allowed to un-. .wind from the drum 25.

These pawls 83 are yieldably held in a normal position by the springs 85 and carry pins 86 which pass through slots 87 in the cap 88. This cap 88 is rotatably connected with the hub 81 byv means of the screws 89 which pass through the slots 90 to permit the cap 88 to the speed of the drum 25, is then not lim ited to the speed of the sprocket 'wheel 80.

When this device is in usethe pulley 19 is connected with the clevis QOcf the plow and the tractor moved forwardly at a rate of speed, say four miles an hour and draws the plow after it. The plow is held close up to the tractor with the spring pawl shown in Fig. 6 set to hold the drum against rotation. When the tractor comes to a steepv hill or to a section of ground which is so soft or muddy that the tractor cannot readily pass over the same or which is so hard that the plow cannot readily pass through it with the tractor and plow moving at the same rate of speed the pawl shown in Fig. 6 is released by means of the lever 37 and the drum will then be released and will allow the cable to unwind at the rate of about six miles an hour. This will give a rate of about'one mile an hour to' the plow while the tractor will travel at the same rate of speed as it did before. This enables the tractor to go up the hill or through the mud or over a slippery plac'ein'thc field at regular speed and draw the plow with it "at a/reduced. speed. It has been stated that the tractor is connected with a plow butjit-is obvious that this tractor could be connected with any other type of farming implement or with a heavily loaded wagon, the term plow being simply used for convenience. If .it is neces-' sary the plow or load which the tractor is drawing can be left stationary by releasing the clutch of the sprocket wheel 80 shown in Figs. 9 and 10 to hold the pawls out of engagement with the teeth 82. The shaft'22 ill thus be left. free and sincecthe cable is amected with the plow the cable'will be unwound from the drum as the tractor moves forwardly. Of course the pawl 27 must be released in order to permit the drum to r0- tate and unwind the cable. After the tractor has gotten up the, hill or through the mud or slippery place or has pulled the plow through the hard ground the cap 88 will be turned to release the pawls and permit the springs to return them into engagement with the teeth 82. The brake strap 69 is then set on the gear drum by means of the lever 73 thus causing the cable to be wound upon the drum and thus draw the plow up toward the tractor; When this winding is taking place the cable will be wound upon the'drum at the rate of two miles an hour thus giving the rate of five miles per hour to the plow thus causing it to gradually overtake the tractor. When the plow has been drawn up to the tractor the desired amount and. it is desired to again have the plow and tractor move at the same rate ofspeed the pawl 27 will again be brought into engagement with the ratchet 26iand the brake strap released so that it will u "not bind upon the brake drum. As the cable iswvindingor unwinding the gear 47 will be wthe shaft 44 thuscausing the pinion 43 to rotated by the Worm 4:8' and will then rotate move the rack 38 longitudinally across the drum 25 with a reciprocatin-gmotion. The

cable will then be evenly wound upon the drum and prevented from winding more upon one end of the drum than it does upon the other. v w a If desired this tractor can be used for pulling stumps or lifting heavy weights, by

raising the frame sothat the driving wheels,

.j. do not engage the ground and then connecting the pulley with a suitable device for en- Y gaging the stumps and drawing upon .the

I cable to draw the stump out of the ground.

When thisdeviee is used for pullingstumps or lifting a heavy weight the brake strap 69 can be applied so as to. act as abrake when the cable is unwinding from the drum 25 and the brake strap 69 can also be applied to securely hold the brake drum in which planetary gearing is positioned, 'thus reversing the motion of the drum 2-5.

What is claimed is i 1. A tractor comprising a frame, a shaft rotatably mounted beneath said frame, a drum carried by said shaft, awbrake drum,

planetary gearing mounted within 'said brake drum, a sprocket wheel rotatably zinounted upon said shaft, a clutch carried by said shaft and including pivotally mounted pawls yieldably held in a normal position for engagement with the hub of i said sprocket wheel, means for moving said pawls out of'an operative position, a cable guide including a rectangular rack provided with internal teeth, a shaft provided with a pinion engaging the teeth of said rack, and means for transmitting rotary motion from said first mentioned shaft to said second mentioned shaft. i v

2. A tractor comprising a frame, a rotatably mounted shaft, a cable drum carried by said shaft, means for engaging said cable drum to prevent rotation of the same, a brakedrum mounted upon said shaft, planetary gearing within said brake drum about said shaft, a cable guide mounted to slide longitudinally of said cable drum and ineluding a rectangular rack, a i'otatably ,mounted shaft provided with a pinion engaging the teeth of said rack to reciprocate flsaid cable guide when said second shaft is rotated, means for transmitting rotary mo- ,tion from said first mentioned shaft to said second mentioned shaft, means for trans- 'band positioned about said mittiiig rotary motion to said first menshaft, supporting bars extending longitudinally of said cable drum, a guiding yoke, a rack passing through said guiding yoke, a pulley housing extending from, said yoke and provided with arms slidably connected with said bars, a rotatably mounted shaft provided with a pinion engaging the teeth of said rack, and means for transmitting rotary motion from said first mentioned shaft to said last mentioned shaft.

4. A tractor comprising a frame, a rote table shaft, bearing brackets rotatably mounted in said shaft, means for rotating said shaft, arms extending from said bearing brackets, bearings carried by one of said arms, a second shaft rotatably supported in said bearings, guiding bars carried by said arms, a yoke carried by one of said arms, a rack passing through said yoke, a pulley housing extending from said rack, arms ex tending from said pulley housing and provided with slots through which said guiding bars pass, a. pinion carried by said second shaft and meshing with the teeth of said rack, and means for transmitting rotary motion from said first mentioned shaft to said second mentioned shaft.

5. A tractor comprising a frame, a rotatably mounted shaft, a cable drum carried by said shaft, yieldably mounted means engaging said drum to releasably prevent rotation of the same, a slidably mounted cable guide including a rack provided with teeth, longitudinally and transversely extending bracing strips for said rack, a web extending from said longitudinally extending bracing strips, :1 second rotatably mounted shaft, a pinion carried by said second shaft meshing with the teeth of said rack, a roller mounted upon said second shaft and engaging said web, and means for transmitting rotary motion from said first mentioned shaft to said second mentioned shaft.

6. A tractor comprising a frame, a rotatably mountedshaft, a cable drum carried by said shaft, a cable'guide, means for reciprocating said cable guide longitudinally of said cable drum, a brake drum positioned about said shaft and inclosing planetary gearing positioned about said shaft, a brake brake drum means yieldably engaging said cable drum for releasably preventing rotation of the same, a wheel rotatably mounted upon said shaft and provided with an enlarged hub forming a housing and with a sleeve extending along said shaft into said brake drum, clutch teeth positioned within said housing,

a block carried byqsaid shaft Within said housing, pawls pivotally connected with said block, resilient means normally holding said pawls in engagement .wlt'h said teeth, a 'rotatably mounted cap' for; said housing provided with arcuate slots, pins extending from said pawls through said slots to cause said pawls to be moved out of engagement with said teeth when'said cap is rotated.

- 7 A tractor comprising a frame, a rotatably mounted shaft, means for rotating said shaft, a cable drum carried by said shaft,

means engaging said cable drum for nor 

